Shingle painting and a machine therefor



y 1954 M. M. WALKER SHINGLE PAINTING AND A MACHINE THEREFOR Filed May11, 1953 INVENTOR MAURICE M. WALKER A TTORNE Y Patented July 20, 1954SHINGLE PAINTING AND A MACHINE- THEREFOR Maurice M. Walker, SouthBurnaby, British Columbia, Canada Application May 11, 1953, Serial No.354,125

or. 118-421) v 6 Claims. 1

My invention relates to improvements in shingle painting and a machinetherefor.

The demand for shingles having a grooved or striated weather surfacewhich are painted before delivery to the job has made it necessary todevelop means and a method of applying the paint to the shingle insufficient quantity to properly coat the entire grooved surface withoutwaste of paint or applying more than enough to cause the paint to betacky and require too long a drying time.

The present machine is designed to accomplish these desirable objectsand also to provide means whereby the quantity of paint to be appliedcan be varied to suit the various types of shingle or other short lengthmaterial to be painted. A still further object is to provide that theweather side of the shingle will pass through the machine face upwards,so that adequate inspection can be made and defects, if any, can be runthrough the machine a second time without delay, for correction.

Referring to the accompanying drawings:

Figure l is a longitudinal sectional View of the preferred modificationof the invention.

Figure 2 is a diagrammatic view showing the manner in which a desiredamount of paint is picked up by the work piece.

Figure 3 is a longitudinal sectional view of a modification.

In the drawings like characters of reference indicate correspondingparts in each figure.

The numeral 5, see Figure 1, indicates a base having supports 2 uponwhich longitudinal frame members 3 are mounted. A bed generallyindicated by the numeral 5 having a feed section 1 and a deliverysection 3 is mounted upon the frame members 3. Mounted in suitablebearings, not shown, are two vertically disposed pairs of suitablydriven rolls respectively indicated by the numerals 9 and It which arespaced apart. All the rolls are provided with a metal core it having anouter shell or sleeve 52 of resilient Ina-- terial such as rubber,plastic or other non-absorbent material capable of gripping andconveying shingles or other short articles having a variation inthickness between their ends. All the rolls 9 and it may be of identicaldiameter, but it is preferable that the lower roll it should be slightlyless in diameter than the others or that it should be driven at aslightly lower speed so that a shingle passing between the rolls itshould be urged downwardly into firm contact with the adjacent edge ofthe delivery section 8.

The upper rolls 9 and Ill are operatively connected by an endless beltit which is preferably carpet or other material having a pile outersurface and capable of carrying suificient paint. The bight of the pairsof rolls is in alignment with the delivery section 8 of the bed 5 andinterposed in the interspace between the pairs of 2 rolls is a flap l6hingedly mounted upon a transverse shaft I'l adjacent the rolls 9. Thefree end of the flap I6 is adjusted as to elevation by means of avertical screw l 9 fitted at its lower end with a hand wheel 20.Suitably supported above the feed section 1 of the bed 5 is a transversebrush 22 which is adapted to sweep the upper face or" the work pieces asthey are fed into the bight of,

the roll 9. The discharge section 6 of the bed is provided adjacent therolls [6 with a slot 23 through which a transversely mounted invertedbrush 24 is adapted to extend to a point slightly above said section. Asecond brush 25 is mounted with its bristles 26 extending downwardly andslightly in the direction of the feed along the bed to engage the uppersurface of shingles or other work pieces travelling along the bed.

One or more heating plates 23 of any desired type are mounted in closeproximity to the belt 15 to heat it and the paint being carried thereby.

A paint vat 29 is mounted under the lower roll Ill in which paint isadapted to be fed to a suitable level so that as said roll is turned inthe direction of the arrow shown thereon paint will be carried up to thebight between said rolls. In Figure 2 a shingle is shown contacting thelower roll [3 slightly below the bight between the lower and upperrolls, where it will intersect the usual accumulated paint body carriedup by the rotation of the roll. That portion of the paint which ismarked X is separated from the paint below and is spread by the belt I5on the upper face of the shingle and is pressed downwardly into thegrooved surface by the pile of the belt as the shingle passes outwardlyto discharge over the delivery section 8. If a heavy volume of paint isdesired to be applied the flap i6 is lowered to pick up a greater amountof the paint accumulated at the bight of the rolls It.

In the modification shown in Figure 3, the machine is made of shorterlength than that above described, one pair of vertically disposed drivenrolls 40 consisting of lower and upper rolls each having a resilientcovering. Mounted parallel to and above the rolls 40 is an idler ii andan endless belt 42 extends around the upper r011 til and the idler 41.The belt 42 extends past pairs of heating plates 43. A feed section 44and a delivery section 45 are provided respectively in front of andbehind the rolls 41), the feed section being preferably slightly belowthe bight between said rolls and the delivery section being leveltherewith. A hinged flap it is provided adjacent the feed section, whichflap extends into close proximity with the lower roll 48 and isadjustable vertically by means of a screw t! to dispose its free end ata desired height level with or below the bight between the rolls to tometer the paint delivered onto the upper surface of a work piece passingbetween said rolls.

' A presser foot 50 consisting of a frame 5! having 3 a transversemember 52 is hinged from a pair of spaced standards 54, one only shown.The presser foot is urged into contact with the hinged flap 45 by aspring 55. A pair of brushes 55 extend transversely of the deliverysection 45 and are angularly disposed to each other in order tofacilitate the entry of a work piece between them.

In the modification of Figure 3 the lower roll lll is preferably drivenat a slightly less peripheral speed than the upper roll to urge the leading edge of the work piece downwardly onto the delivery section 45.

The operation of the machine shown in Figure 1 is as follows: The flapi6 is adjusted as to elevation of its free end to cause the shingle tipto pick up upon its upper surface the desired amount of paint. Theshingle in passing between the rolls is engaged on its upper or groovedsurface with the carpet belt !5, the pile oi which forces the paint downinto the base of the grooves and evenly disperses the paint over itsentire surface. The lower surface is also obi iously covered with paintbut this coating while sufficient may not be as perfect as that appliedto the upper surface owing to irregular indentation due to saw marks. Asthe shingle passes between the brushes 2d and 25 any particles of woodwhich may have adhered to the surfaces will be dislodged from thesurfaces and the paint will be brushed to give the desired finishthereto. Subsequent shingles being fed through the machine will firstthe brush 22 then be fed through the rolls 9, coming into contact withthe belt where an initial coat of paint will be applied to the uppersurface and will be carried by said belt and the rolls 9 through thepoint of paint pick up and into the bight of the rolls iii.

If the paint being used is of relatively slow drying characteristic,heat will be applied to the belt 15 by the heating elements 28, so as towarm it and produce evaporation of volatiles therein, so that theinitial paint application by the rolls 9 will be slightly tacky and willassist the paint picked up from the lower roll it in drying when appliedto the shingle.

In the modification shown in Figure 3 all the painting is done by onepair of rolls e. g. the rolls 25, in one operation and the paint exposedto drying action in the belt is combined with the paint picked up andapplied at the same moment.

It is conceivable that the hinged flap shown in the preferredmodification of the invention may be dispensed with and the paintapplying rolls be made vertically adjustable to dispose their bight therequired distance above the plane of the bed. For this purpose avertical screw 50 would be mounted beneath the bearings which journalthe rolls it.

What I claim as my invention is:

1. A machine for painting shingles and the like comprising a pair ofvertically disposed rolls, a bed substantially aligned with the bightformed between the pair of rolls, said bed having a discharge section onone side of the rolls, a substantially horizontal member at the oppositeside of said rolls upon which shingles are adapted to be fed into thebight of said rolls, means for applying paint to one of the rolls, anendless belt trained around the upper of said rolls, said belt beingsubstantially longer than the periphery of said roll, means forsupporting the belt in extended position, and means for adjusting thesubstantally horizontal member relatively to the level of the bight ofthe rolls.

2. A machine for painting shingles and the like comprising a pair ofvertically disposed rolls, a bed substantially aligned with the bightformed between the pair of rolls, said bed having a discharge section onone side of the rolls, a substantially horizontal member at the oppositeside of said rolls upon which shingles are adapted to be fed into thebight of said rolls, means for applying paint to one of the rolls, anedless belt trained around the upper of said rolls, said belt beingsubstantlaly longer than the periphery of the said roll, means forsupporting the belt in extended position, means for adjusting thesubstantially horizontal member relatively to the level of the bight ofthe rollers, and means for heating the belt.

3. A machine for painting shingles and the like comprising two pairs ofvertically disposed rolls arranged in spaced relation, one pair of rollsserving to feed shingles to be painted and the other pair serving toapply paint to said shingles, a bed extending in substantial alignmentwith the bight of each pair of rolls, and endless belt surrounding theupper roll of each of said pairs, a paint tank disposed under the lowerof the paint applying rolls to supply paint thereto, means for guiding ashingle from the feed rolls to the paint applying rolls, and means foradjustably varying the elevation at which said shingle is brought intocontact with the lower of said paint applying rolls.

l. A machine for painting shingles and the like comprising two pairs ofvertically disposed rolls arranged in spaced relation, one pair of rollsserving to feed shingles to be painted and the other pair serving toapply paint to said shingles, a bed extending in substantial alignmentwith the bight of each pair of rolls, and endless belt surrounding theupper roll of each of said pairs, a paint tank disposed under the lowerof the paint applying rolls to supply paint thereto, means for guiding ashingle from the feed rolls to the paint applying rolls, means foradjustably varying the elevation at which said shingle is brought intocontact with the lower of said paint applying rolls, and means forheating the belt.

5. A machine for painting shingles and the like comprising two pairs ofvertically disposed rolls arranged in spaced relation, one pair of rollsserving to feed shingles to be painted and the other pair serving toapply paint to said shingles, a bed extending in substantial alignmentwith the bight of each pair of rolls, an endless belt surrounding theupper roll of each of said pairs, a paint tank disposed under the lowerof the paint applying rolls to supply paint thereto, a hinged fiapmounted between the pairs of rolls substantially aligned with the bed,the free end of said flap being adjacent to the paint applying rolls,and means for adjusting the elevation of the free end of said flap.

6. A machine for painting shingles and the like as claimed in claim 3,and a pair of brushes extending transversely of the bed beyond the paintapplying rolls to engage the upper and lower faces of the shingle.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 677,343 Delaney July 2, 1901 778,709 Robertson Dec. 27, 19041,325,110 Robinson Dec. 16, 1919 1,345,719 Vavra July 6', 1920 1,693,172Bergstein Nov. 27, 1928 2,354,777 Schwartz Aug. 1, 1944

